<template>
  <div>
    <!-- Header 区域 -->
    <van-nav-bar fixed title="文章详情" left-arrow @click="$router.back()" />
    <van-loading color="#1989fa"> 文章加载中…… </van-loading>

    <!-- 文章信息区域 -->
    <div class="article-container">
      <!-- 文章标题 -->
      <h1 class="art-title">{{ articleDetail.title }}</h1>

      <!-- 用户信息 -->
      <van-cell
        center
        :title="articleDetail.aut_name"
        :label="timeAgo(articleDetail.pubdate)"
      >
        <template #icon>
          <img :src="articleDetail.aut_photo" alt="" class="avatar" />
        </template>
        <template #default>
          <div>
            <van-button
              type="info"
              size="mini"
              v-if="articleDetail.is_followed"
              @click="followed(false)"
            >
              已关注
            </van-button>
            <van-button
              icon="plus"
              type="info"
              size="mini"
              plain
              v-else
              @click="followed(true)"
            >
              关注
            </van-button>
          </div>
        </template>
      </van-cell>

      <!-- 分割线 -->
      <van-divider></van-divider>

      <!-- 文章内容 -->
      <div class="art-content" v-html="articleDetail.content"></div>

      <!-- 分割线 -->
      <van-divider>End</van-divider>

      <!-- 点赞 -->
      <div class="like-box">
        <van-button
          icon="good-job"
          type="danger"
          size="small"
          v-if="articleDetail.attitude === 1"
          @click="like(false)"
        >
          已点赞
        </van-button>
        <van-button
          icon="good-job-o"
          type="danger"
          plain
          size="small"
          v-else
          @click="like(true)"
        >
          点赞
        </van-button>
      </div>
      <ComponentList></ComponentList>
    </div>
  </div>
</template>

<script>
import {
  articlesDetailAPI,
  followedUserAPI,
  unFollowedUserAPI,
  articleLikeAPI,
  articleDisLikeAPI
} from '@/api/index.js'
import Notify from '@/ui/Notify.js'
import ComponentList from './CommentList.vue'
import { timeAgo } from '@/utils/date.js'
export default {
  components: {
    ComponentList
  },
  data() {
    return {
      // 文章对象
      articleDetail: []
    }
  },
  created() {
    this.getDetailList()
  },
  methods: {
    async getDetailList() {
      const { data: res } = await articlesDetailAPI({
        article_id: this.$route.query.art_id
      })
      this.articleDetail = res.data
    },
    followed(bool) {
      if (bool) {
        // 已关注
        setTimeout(async () => {
          this.articleDetail.is_followed = true
          await followedUserAPI({
            target: this.articleDetail.aut_id
          })
          Notify({ type: 'success', message: '关注成功!' })
        }, 1000)
      } else {
        // 关注
        setTimeout(async () => {
          this.articleDetail.is_followed = false
          await unFollowedUserAPI({
            uid: this.articleDetail.aut_id
          })
          Notify({ type: 'success', message: '已取消关注!' })
        }, 1000)
      }
    },
    // 点赞
    async like(bool) {
      if (bool) {
        this.articleDetail.attitude = 1
        const res = await articleLikeAPI({
          artId: this.articleDetail.art_id
        })
      } else {
        this.articleDetail.attitude = 0
        const res = await articleDisLikeAPI({
          artId: this.articleDetail.art_id
        })
      }
    },
    timeAgo
  }
}
</script>

<style scoped lang="less">
.article-container {
  padding: 10px;
  margin-top: 46px;
}
.art-title {
  font-size: 16px;
  font-weight: bold;
  margin: 10px 0;
}

.art-content {
  font-size: 12px;
  line-height: 24px;
  width: 100%;
  overflow-x: scroll;
  word-break: break-all;
  /deep/ img {
    width: 100%;
  }
  /deep/ pre {
    white-space: pre-wrap;
    word-wrap: break-word;
  }
}

.van-cell {
  padding: 5px 0;
  &::after {
    display: none;
  }
}

.avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #f8f8f8;
  margin-right: 5px;
  border: none;
}

.like-box {
  display: flex;
  justify-content: center;
}
.van-loading {
  text-align: center;
}
</style>
